@misc{Villegas2012,
address = {San Jos\'{e}},
author = {Villegas, J and Herrera, L},
booktitle = {La Naci\'{o}n},
title = {{260.000 autos y 19.000 buses atascan San Jos\'{e} cada d\'{\i}a}},
url = {http://www.nacion.com/2012-03-17/ElPais/260-000-autos-y-19-000-buses-atascan-san-jose-cada-dia.aspx},
year = {2012}
}
@misc{Loaiza2007,
address = {San Jos\'{e}},
author = {Loaiza, V},
booktitle = {La Naci\'{o}n},
title = {{Capital estrena sem\'{a}foros inteligentes en 180 intersecciones}},
url = {http://wvw.nacion.com/ln\_ee/2007/noviembre/28/pais1332560.html},
year = {2007}
}
@misc{Mata2009,
address = {San Jos\'{e}},
author = {Mata, Alonso},
booktitle = {La Naci\'{o}n},
title = {{Acceso libre a San Jos\'{e} provoca colapso vial}},
url = {http://wvw.nacion.com/ln\_ee/2009/junio/16/pais1997637.html},
year = {2009}
}
